Flexible pipe-coupling.



W. H. RAMSEY.

FLEXIBLE PIPE GOUPLING. APPLIOATION FILED ooT.15, 1913.

1 1,092,390 Patented Apr. 7, 191.4.

5@ Nfmss M www@ COLUMBIA PLANOGRAPH co.. WASHINGTON. D. o.

narran sfrafrss rnd-nur onirica WILLIAM H. RAMSEY, OF DAWSON, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD TO J. A. SMITH AND ONE-THIRD TO R. D. HENRY, F DAWSON, PENNSYLVANIA.

FLEXIBLE PIPE-COUPLING.

Specification of Letters Patent.

Patented Apr. '7, 1914.

To all whom t may concern Be it known that I, VVILLLIAM H. RAMsnY, of Bawson, in the county of Fayette and tate of Pennsylvania, have invented certain new and useful Improvements in Flexible Pipe-Couplings; and I do hereby declare the following` to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

r1his invention relates to improvements in pipe couplings and more particularly to that type which are leXible,-one object of the invention being to so construct a flexible pipe coupling that the parts may have free relative movement without liability of leakage and without the use of packing'.

A further object is to so construct a iieXible pipe coupling that the connecting means between the two relatively movable members shall automatically compensate for wear and maintain a Huid-tight connection between said members.

Vith these and other objects in view, the invention consists in certain novel features of construction and combinations of parts' as hereinafter set forth and pointed out in the claims.

In the accompanying drawing; Figure 1 is a sectional view of a flexible pipe coupling embodying my improvements; Fig. 2 is an vend view of the member 1; Fig. 3 is a side elevation of the member 1; Fig. 4 is a side elevation of the member 2; Fig.5 is a sectional view on the line m-ae Fig. t, and Fig. 6 is a detail view of the tubular connecting pin.

My improved couplingcomprises members' l and 2 and a tubular pin 3 pivotally connecting the members 1 and 2. The member 1 is a casting made in the form of a yoke, the arms 1 -1 of which unite at one end `where the member is adapted for the connection of a pipe therewith, and the free ends of said arms 11-1 form rectangular heads 5, 5, which receive one end of the member 2 between them, said member 2 having flat faces to lie parallel with the iiat inner faces of the heads 5 of the member 1. The outer end of the member 2 is suitably constructed for the attachment of a pipe thereto.

The yoke member 1 of the coupling is made with ducts 6 which communicate with each other at one end and terminate at their other ends in the headsof said yoke member. One of the heads 5 is made with a recess 7 adjacent to the end of the duct in said head, and the other head 5 is made with an opening 8 which communicates with the duct 6 in this head..

The coupling pin 3 is not only tubular but it also has a conical or tapering exterior, the bearing faces for said pin in the heads 5 and in the member 2 (through which latter the pin passes to pivotally connect the members 1 and 2 together) being made slightly tapering to conform to the contour of said pin'. At one end, the pin 3 terminates near the bottom of the recess 7 in one of the heads 5, while the other end of said pin terminates within the opening 8 in the other head 5. A portion of the wall of the opening 8 is threaded to receive a nut 9, which constitutes one abutment for a coiled spring 10,-the other end of said spring being caused to bear against one end of the tubular, conical connecting pin and serve to eX- ert sufficient pressure to maintain a fluidtight connection between said pin and the respective members 1-2 of the coupling and also to automatically compensate for wear.

The member 2 of the coupling is made with a duct 11, which communicates at its inner end with an annular duct 12 which surrounds the tubular connecting pin. The ducts 11-12 communicate with the interior of the pin through an opening` 13 in the wall of said pin. By providing the annular duct 12, communication between the duct 11 of member 2 and the interior of the pin, will be insured, regardless of the angle which the members 1 2 may assume relatively to each other.

From the construction and arrangement of parts herein described and shown, it will be apparent that the flow of Huid may be traced through the duct 11 in member 2.; then into the tubular pivot pin, and from the respective ends of the latter to the ducts 6 in the respective arms of the yoke member` and finally through the common outlet of said ducts 6 at the smaller end of said yoke member.

My improvements are exceedingly simple in construction; comprise a minimum number of parts; may be constructed at a small cost, and produce an eflicient flexible pipe coupling without the use of packing.

" lar member having flat abutting faces, a tu- Havingfully described my invention .what I claim as new and desire to secure by LettersPatent, is

l. A'flexible pipe couplingcomprising a yoke-member having ducts communicating at one end and terminating attheirother ends in the arms of said yoke member, a tubular memberentering-between the arms of;A

the yoke member, a tubular pin `open lat both ends and passing through the tubular member and communicating Withthe duct therein,'said pin terminating within the arms of the yoke member and communicating at its vrespective ends with the ducts therein, and means vfor retaining said pin against its seats in the two members and automatically comensating for wear.

'2. A flexible pipe coupling, comprising a yoke member having heads at the free ends of its Aarms and having ducts communicating with each other at one end and terminating at their other ends in said heads, said heads having openings in their inner faces, a tubular member having a part enterng'between saidheads, said heads and said tububular pin open at its ends vand passing trans# ver'sely through said t-ubular member and. communicating therewith and terminating within the openings in the inner faces of the heads of the yoke member so as to communicate at its ends with the ducts in the yoke member and pivotally connect the two members of the coupling. l

3. A exible pipe coupling comprising a yoke member having ducts, Ysaid ducts communicating at one end and terminating at their other ends within the arms of said yoke member,- a tubular memberV havingone endHente-ring between thearms of theyoke member, a tubular conical pin passing transversely kthrough said tubular member and communicating therewith and having a bearingf-infsaid tubular member, said pinalso lhaving Ibearingsin the arms of the yoke member, a spring within one of the arms of the yoke member and bearing` againstl one end of said tubular,`c`onical pin, and a nut against which ythe other end of said spring bears.

' 4. A iieXible pipe coupling comprising two members, one of -said members being bifurcated Vto receive the other, a Vtubular conical pin open at its ends and pivotally connecting said members, the ends of said pin being inclosed within the arms of thel WILLIAM H. RAMSEY.

Witnesses M. I-IncI-ILINGER, Jr., GEO. L. WHIPKETT.

Copies of'this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, C. Y 

